<template>
  <div>
    <!--面包屑導航區域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!--搜索與添加區域-->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="9">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用戶</el-button
          >
        </el-col>
      </el-row>
      <!--用戶列表區-->
      <el-table :data="userlist" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template v-slot="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template v-slot="scope">
            <!--修改按鈕-->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!--刪除按鈕-->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!--分配權限按鈕-->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!--分頁區域-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!--添加用戶的對話框-->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!--內容主體區域-->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用戶名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--底部區域-->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!--修改用戶的對話框-->
    <el-dialog
      title="修改用戶"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
<!--分配角色的對話框-->
    <el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%"
  @close="setRoleDialogClosed">
<div>
  <p>当前的用户:{{userInfo.username}}</p>
  <p>当前的角色:{{userInfo.role_name}}</p>
  <p>分配新角色:
     <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
  </p>
</div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      //獲取用戶列表的參數對象
      queryInfo: {
        query: '', //查詢參數
        pagenum: 1, //當前頁碼
        pagesize: 2, //每頁顯示條數
      },
      userlist: [],
      total: 0,
      addDialogVisible: false, //控制添加用戶對話框的顯示與隱藏
      addForm: {
        //添加用戶的表單數據
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      addFormRules: {
        //添加表單驗證規則對象
        username: [
          { required: true, message: '请输入用戶名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3~10个字符之间',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '密码的长度在6~15个字符之间',
            trigger: 'blur',
          },
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            pattern:
              /^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/,
            message: '邮箱格式不对',
            trigger: 'blur',
          },
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          {
            pattern:
              /^1[3456789]\d{9}$/,
            message: '手机号格式不对',
            trigger: 'blur',
          },
        ],
      },
      //控制修改用戶對話框的顯示與隱藏
      editDialogVisible: false,
      //查询用户信息对象
      editForm: {},
      //修改表單的驗證規則對象
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            pattern:
              /^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/,
            message: '邮箱格式不对',
            trigger: 'blur',
          },
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          {
            pattern:
              /^1[3456789]\d{9}$/,
            message: '手机号格式不对',
            trigger: 'blur',
          },
        ],
      },
      //控制角色分配對話框顯示與隱藏
      setRoleDialogVisible:false,
      //需要被分配角色的用戶信息
      userInfo:{},
      //所有角色的數據列表
      rolesList:[],
      //已選中的角色id值
      selectedRoleId:''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
      console.log(res)
    },
    //監聽pagesize改變的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },

    //監聽頁碼值改變的事件
    handleCurrentChange() {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //監聽switch狀態開關改變的事件
    async userStateChanged(userinfo) {
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    //監聽添加用戶對話框的關閉事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    //點擊按鈕添加新用戶
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return
        //可以發起添加用戶的網絡請求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        //隱藏添加用戶的對話框
        this.addDialogVisible = false
        //重新獲取用戶列表數據
        this.getUserList()
      })
    },
    //展示編輯用戶的對話框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    //監聽修改用戶對話框的關閉事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    //修改用戶信息並提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return
        //發起修改用戶的數據請求
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          }
        )

        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        //關閉對話框
        this.editDialogVisible = false
        //刷新數據列表
        this.getUserList()
        //提示修改成功
        this.$message.success('更新用户信息成功')
      })
    },
    //根據id刪除對應的用戶信息
    async removeUserById(id) {
      //彈框詢問用戶是否刪除
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用戶, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => err)
      //若用戶點擊確認則返回字符串confirm,取消返回chacle
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    //展示分配角色的對話框
    async setRole(userInfo){
      this.userInfo = userInfo
      //在展示對話框之前獲取所有角色列表
      const {data:res} = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    //點擊按鈕分配角色
    async saveRoleInfo(){
      if(!this.selectedRoleId){
        return this.$message.error('请选择要分配的角色')
      }
      const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败')
      }
            this.$message.success('更新角色成功')
            this.getUserList()
            this.setRoleDialogVisible = false


},
//監聽分配角色對話框的關閉事件
setRoleDialogClosed(){
this.selectedRoleId = ""
this.userInfo = {}
}

  },
}
</script>

<style lang='less' scoped>
</style>